Quantum mechanical study on plasmon resonances in small ring clusters
Quantum mechanical study on plasmon resonances in small ring clusters
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DOI：
10.1002/qua.23302
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发表时间：
2012-08
影响因子：
2.2
通讯作者：
Haifeng Yin;Hong Zhang
中科院分区：
文献类型：
--
作者：
Haifeng Yin;Hong Zhang
The collectivity of the electronic motion in small sodium clusters with ring structure is studied by time-dependent density functional theory. The formation and development of collective resonances in the absorption spectra were obtained as a function of the ring radius. In small ring clusters, besides the lower-energy mode and the higher-energy mode, there is another plasmon resonance mode, that is, the reverse two-dipole mode. For the reverse two-dipole mode, the formations of these two dipoles are due to the external field inducement and the shielding effect, although the resonant excitation is mainly due to the coupling effect of the electrons of these two dipoles. © 2012 Wiley Periodicals, Inc.
